{equations} is about the various environments to typeset displaystyle mathematics, e.g. equation and {align}. For general questions about mathematical typesetting use {math-mode}. Both tags are possible on the same question.

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4
votes
2answers
470 views

How can I add size of Tikz drawing into size of equation?

This is slightly modified code from Frédéric's answer to How can I add clips above matrix? \documentclass{mwrep} \usepackage{amsmath} \usepackage{tikz} ...
20
votes
4answers
6k views

How to break a long expression in the denominator of a fraction?

I used the split command to break my equation but I receive the error: ! Missing } inserted. <inserted text> } l. \end {split} The code in .tex file is as follows: ...
11
votes
3answers
3k views

Why doesn't lineno number a paragraph when it is followed by an indented equation?

While searching for the source of missing line numbers, I realized that paragraphs followed immediately by an equation have no line number, but this is fixed when a space is included, e.g. the ...
10
votes
1answer
441 views

What would be the appropriate technique for typesetting a “where” list of variable specifications after an equation?

I'm often finding I need to lay out an equation in a manner resembling the following source: \begin{align*} x = y + z \end{align*} where $y = $ the value of $y$; $z = $ the value of $z$. ...
9
votes
1answer
8k views

Systems of equations with a single number

I want to write a numbered system of equations. Right now, this is what I do and I am satisfied with the output, but I have a feeling it's not the best way to do it. \begin{equation} ...
9
votes
5answers
3k views

How to subtract two equations?

I am trying to subtract one equation from another but I can't get it to display the way that I want. This is what I have right now. \begin{align*} &y&=2x+5\\ -&&\\ ...
9
votes
1answer
4k views

How can I add numbers to specific equations in an eqnarray*?

I know how to use \nonumber or \notag in \begin{eqnarray} \end{eqnarray} environment. But is there something like \addnumber or \addtag in \begin{eqnarray*} \end{eqnarray*} environment ? For ...
9
votes
2answers
4k views

What are the Open source WYSIWYG Independent Web Equation Editors available on LaTeX/MathML

I am looking for a solution of an Equation Editor to be added to my site. The equation editor should be open source, WYSIWYG (users should be able to type out Equations as if in MS Equation Editor or ...
8
votes
2answers
587 views

Equation number with an apostrophe

I am writing two equations in an align environment: \begin{align} x^2+y^2=z^2, \\ x^2=7, \end{align} I would like the first equation to be labelled with e.g. (1.1) and the second equation to be ...
8
votes
6answers
4k views

Setting a single equation in a paragraph in a smaller font

I'm trying to figure out the best way of making a single equation just a little bit smaller. Of course, I could try and break up the equation into pieces and proceed that way, but I'd like to ...
7
votes
1answer
748 views

nested equations numbering

Is there a way of playing with align, alignat, numcases etc environments that produces aligned and numbered equations which look like this : Blahblah text before equations : A = B \iff C = D ...
7
votes
2answers
799 views

Excess vertical space in mdframed ending with display math environment

When the mdframed environment ends with an align there is excess vertical spacing at the bottom. I would like to adjust the MyBoxedEnvironment environment such that the vertical space at the bottom ...
6
votes
2answers
377 views

Equation numbering in square brackets [duplicate]

Does anyone knows how can I use square brackets instead of parenthesis when numbering my equations? I used this command: \begin{equation} y = 2x \end{equation} The number appears on the right ...
6
votes
2answers
1k views

Number of Equation: 1, 1a, 1b

Following Problem: I have a PDE and two boundary conditions what i actually want is: PDE (1) BC1 (1a) BC2 (1b) and what i have is: PDE (1) BC1 (2a) BC2 (2b) is there something which provides a ...
6
votes
1answer
229 views

Labeling Multiple Equations Per Row of a Table

I am trying to create a table with two columns of independently labelled equations (1-6). Unfortunately, everything I have found so far either has not worked or would number them as sub-equations (1a, ...
6
votes
1answer
2k views

How to make all math equations bold by default?

I am using the bm package which provides the \bm command to boldify equations. However, all my equations need to be bold, and I find using the \bm command tedious. Is there a way to make the ...
6
votes
2answers
1k views

Modifying \everydisplay causes the align* environment to stop working

I want all displayed mathematics in my document to be typeset in the style of inline mathematics. In his answer to this question, Matthew Leingang explains how to do the opposite (typeset all inline ...
5
votes
2answers
4k views

Break Large Equation Between Parenthesis Using Multline

I have a very large equation that I need to write in multiple lines, but multiline is not working between parenthesis. This is my LaTeX code: \begin{multline} e^{-y \lambda_n} \left( ...
5
votes
3answers
2k views

How to number equations with a list environment

Hi I wish to number equations with a list environment \begin{itemize} \item Lol \begin{equation} y_t=h_t(\hat{x}_{t|t-1}) \end{equation} \end{itemize} I want y_t=h_t(\hat{x}_{t|t-1}) in the same ...
4
votes
2answers
199 views

Custom cross-reference formats (e.g. “Equation 1” instead of just “1”) [duplicate]

I have an equation system set up as below. When I reference it however, ie. with \ref{eqn:surfacetension}, it only prints the number '1', and not 'Equation 1'. How can I modify the code to do that? I ...
4
votes
1answer
225 views

Add \par only if last paragraph did not end with displayed math

Background: I have named "sections" (sections for rest of this question) which are conditionally displayed or suppressed based on parameters. To simplify the test case below, these are controlled by ...
4
votes
2answers
8k views

Sub-numbering equations within array

I'm using the array environment to give multiple definitions of some value, let's call it x. I can easily get a reference to all 3 definitions together, but I want each one to have its own reference. ...
4
votes
2answers
318 views

Problem with equation format when starting equation with \dot and \ddot

I am having problems with equation formatting inside the equation environment when the equations begin with \dot or \ddot When I write: \begin{equation} \ddot{\theta} + \frac{g}{l}\sin(\theta) ...
3
votes
1answer
699 views

Editing TeXnicCenter source code for {align}

Is there a simple way to change the TeXnicCenter source code so that the equation array button pops out:- \begin{align*} \end{align*} instead of \begin{align} \end{align} Only I find I ...
2
votes
1answer
104 views

What is the best way to automatically replace $$ … $$ by \[ … \] in multiple files? [duplicate]

Thanks to this great site I've learned that in LaTeX one should always use \[...\] pair for equations typesetting instead of $$...$$. Unfortunately it is too late: I already have a big text with this ...
2
votes
2answers
808 views

Align equations inside tabular

How can I align equations inside tabular? I want to place few lines of equation by side of the picture. But it turns out that I cannot use \& in order to shift equals signs to be one under ...
2
votes
1answer
10k views

Exemple block and equations (Beamer) [closed]

I got an error with the exempleblock environment: \documentclass{beamer} \usetheme{PaloAlto} \begin{document} \begin{frame}\frametitle{Title} \begin{exampleblock} \[ t = ...
2
votes
3answers
11k views

how to insert multi line equation in the tabular environment?

How can insert multi line equation in the tabular environment? For example see the following code that can show my request. \begin{tabular}{rrr} &a &b\\ &u=\begin{cases} 0;& ...
1
vote
1answer
1k views

missing $ inserted error for equation

I get the missing $ inserted error for the following code: \begin{equation} C = $ \frac{2}{\omega^2N^2\mu\pia} $ \end{equation} I have tried out different changes based on Googling for this ...
1
vote
2answers
1k views

Linebreak in equations

I have a very simple LaTeX problem with the following LaTeX fragment: The function computes: \[ e \leftarrow (((x||a) + (y||b)) \oplus y,\\ r \leftarrow x + y \] The result should then be in ...
11
votes
1answer
447 views

Text in an equation

This is best explained by example. Suppose I have the following: \[ \begin{align*} C_3 \rightarrow 6 automorphisms\\ C_4 \rightarrow 8 automorphisms\\ C_5 \rightarrow 10 automorphisms ...
10
votes
4answers
371 views

Depth and height confusion

I create two equations: $x \notin \mathbb{N}$; and $x \in \mathbb{N}$. As it turns out, both have the same depth value: Depth = 0.39098pt Height = 7.5pt Depth = 0.39098pt Height = 6.88889pt ...
10
votes
2answers
2k views

How to format Maxwell equations?

Is there a variant of split environment from amsmath package which would allow for two aligned equations in a row? I want to format two pairs of Maxwell equations in two rows and put single equation ...
10
votes
1answer
11k views

aligning split equation

I am new to Latex ;) I split my equation like this: \begin{equation} \begin{split} \tilde{m}=P\tilde{M} \\ \quad = K(R^1R^2R^3t) \begin{pmatrix} X \\ Y \\ 0 \\ 1 \end{pmatrix} \\ \quad= ...
9
votes
2answers
1k views

Smartly omit chapter number in equation numbering

In my thesis I use chapters, sections and subsection. I like to have my equations numbered with respect to section, but I want the displayed equations numbers not to include the chapter number. ...
8
votes
2answers
283 views

How to align multiple symbols for a long equation?

\documentclass[11pt]{article} \usepackage{xfrac, array, tabu, multirow, graphicx, setspace, dcolumn, tikz} \usepackage[fleqn]{mathtools} %the argument for d specifies the maximum number of decimal ...
8
votes
2answers
834 views

Equation with Large Matrix Dimension

I'm trying to code this matrix equation below, I'm not an expert in latex, but I've been successful dealing with other matrix equations. However with this one, I can't achieve it. The alignment of ...
8
votes
3answers
3k views

How to split optimisation problem over two lines?

I have this expression involving minimisation. How do I split it over two lines? The problem is \min seems to be separated from the objective function. breqn does not seem to work, as this is not an ...
7
votes
2answers
1k views

Typesetting double brackets and double parentheses

I need the LaTeX equation with double square bracket and double paranthesis. Can anyone suggest me the proper code? Here, I had attached the screenshots.
7
votes
2answers
3k views

Underlining an equation in an align block

I'm trying to set up a system of equations and want to underline the last equation, but can't figure it out. Here's what I have: \begin{alignat*}{4} &F_n &- mg &- F_a\sin 32^\circ &= ...
7
votes
2answers
623 views

How do I format this equation in LaTeX?

I want to write this equation in Latex. Sorry, I don't know what's the specific name of this kind of equation. I know title is so general.
6
votes
1answer
296 views

Producing several overlines of the same height throughout a formula

Above is an example produced by S\overline{n}=\overline{n+1}. The overlines are not aligned vertically, which is highly undesirable. Is there any way to produce overlines of the same height ...
6
votes
1answer
1k views

Equation number too close to my equation

My equation number is being placed directly below my equation, so close they're almost touching and it looks really bad. Is there any way that I can get it to move down a little bit? Here's a picture. ...
6
votes
2answers
358 views

LaTex Error Help- Math Related

I'm trying to make an equation array \begin{eqnarray*} f^{(a)} (0) &=& \frac{a!}{2 \pi i} \oint_{ |z| = \frac{\varepsilon}{r}} \frac{f(z)}{(z)^{a+1}} dz &=& &=& ...
5
votes
2answers
178 views

What is the difference between align and equation environment when I only want to display one line of equation?

I am typesetting a physics document, and sometimes I need to type equations of several lines while in most cases I only need to type one-line formula. So is it OK if I always use align environment ...
5
votes
3answers
6k views

Fitting unbreakable large equation on one line in a twocolumn layout

I have an equation in my document which is unbreakable and does not fit on one line using the twocolumn global option. Am I forced to shrink the text size here? And how do I go about doing it? ...
5
votes
2answers
259 views

How can I vertically align the numerators of two fractions?

I am writing the following formula: % arara: lualatex \documentclass{article} \usepackage{mathtools} \usepackage{unicode-math} \begin{document} ...
5
votes
1answer
327 views

Aligning a split up equation not at equal sign

I currently have the following equation: \begin{align} \begin{split} \left| \Psi \left( t \right) \right\rangle _{I}^{3}&=-\frac{1}{{{\hbar}^{2}}}\int_{0}^{t}{\hat{H}_{1}^{I}\left( t' ...
5
votes
1answer
5k views

Can I have a mathematical equation within a caption?

I'd like to have an eqnarray environment (or equivalent) within a table caption. If I do this naively, \begin{table*} % table stuff \caption{\label{tab:my_tab} \begin{eqnarray} a ...
5
votes
1answer
7k views

How to align right within equation array

Suppose I have something like the following: \begin{eqnarray*} \mathrm{gcd}(x^3 + 6x^2 + 5x + 5, x^3 + 13x^2 + 6x + 3) &=& 102x^2 + 108x + 2 \ \mathrm{with} \ p = 109 \\ \mathrm{gcd}(x^3 ...